fixed_width_no_modeling: Distance/threshold test for toolmarks

In toolmaRk: Tests for Same-Source of Toolmarks

Description

Compute all possible correlations for windows of length n between the class components. Determine the location of the maximized correlation. Given this location, create a diamond around it in the individual matrix of correlations For each offset in this diamond, compute the maximized correlation (1) Determine the distance between the offset for the class and indiviudal components (2) Compute the Threshold test statistics

Usage

fixed_width_no_modeling(dat1, dat2, coarse = 0.25, fine = 0.01,
  window.size = 0.6, M = 500)

Arguments

dat1	a one column matrix representing a digitized tool mark
dat2	a one column matrix representing a second digitized tool mark
coarse	normalization smoothing parameter
fine	decomposition smoothing parameter
window.size	desired window size for the correlations to compute
M	search area restriction

Value

list with

• "max_corr"maximized indiviudal component correlation

• "Smooth_offset"optimal Class offset

• "Resid_offset"optimal individual offset

• "dist_pval" distance p-value

• "thresh_pval" threshold p-value

• "Above" Number of offsets with correlation bigger than threshold

• "total_thresh" 2*M+1

• "mark1_decompostion" plot of decomposition d1

• "mark2_decompostion" plot of decomposition d2

• "class_correlations" plot of class correlation

• "individual_correlations" plot of individual correlation

• "distance_plot" distance_plot

• "threshold_plot" threshold_plot

toolmaRk documentation built on May 2, 2019, 3:24 a.m.